Spool
OwnerPierre Portalinventor
Life of this patent
Estimating the term…
Abstract
A spool or warp beam for warp threads comprising an elongated tubular drum having circular steel brackets threadedly connected at the ends. The brackets are outwardly formed to provide a peripherally threaded section. A light alloy flange is provided with a circular cavity having a threaded periphery which turns upon the peripherally threaded section to interconnect the flange and bracket. The diameters of the threaded section and the cavity are designed to provide a shrink fit upon assembly. The coefficients of expansion of the bracket and flange materials are chosen to neutralize the shrinkage effect upon elevating the temperature of the assembly approximately 100.degree. centigrade.
Claims6
In a spool, the combination of
- A. a tubular drum having a longitudinal axis,
- 1. said drum having at least one end;
- B. a bracket connected to the drum at the said end,
- 1. said bracket extending generally angularly outwardly from the axis,
- 2. said bracket including a cooperating face,
- 3. said bracket terminating radially outwardly in a flange connection having an outer edge of a first diameter measured at a first temperature,
- 4. said bracket having a first coefficient of expansion;
- and
- C. a flange removably affixed to the bracket,
- 1. said flange extending generally angularly outwardly from the axis,
- 2. said flange being provided with a bracket receiving cavity,
- a. said cavity receiving the flange connection therein,
- b. said cavity terminating radially outwardly in a peripheral edge,
- 3. said flange having a second coefficient of expansion which is different from the first coefficient of expansion,
- 4. the cavity peripheral edge having a second diameter measured at the first temperature,
- 5. the second diameter being less than the first diameter when measured at a first temperature and the second diameter being greater than the first diameter when measured at an elevated temperature, and
- 6. the outer edge of the bracket flange connection inwardly fitting within the peripheral edge of the flange cavity when the flange and bracket are heated to the elevated temperature.
In a spool, the combination of
- A. a tubular drum having a longitudinal axis,
- 1. said drum having at least one end;
- B. a bracket connected to the drum at the said end,
- 1. said bracket extending generally angularly outwardly from the axis,
- 2. said bracket including a cooperating face,
- 3. said bracket terminating radially outwardly in a flange connection having an outer edge of a first pitch diameter measured at a first temperature,
- a. the flange connection outer edge being threaded,
- 4. said bracket having a first coefficient of expansion;
- and
- C. a flange removably affixed to the bracket,
- 1. said flange extending generally angularly outwardly from the axis,
- 2. said flange being provided with a bracket receiving cavity,
- a. said cavity receiving the flange connection therein,
- b. said cavity terminating radially outwardly in a peripherally threaded section to threadedly receive the flange connection threaded portion,
- 3.
Dependencies are inferred from the claim text.